This project is a collaboration between SFPJV and Melbourne Water, which aims to renew, automate and optimise the existing high voltage system at the Werribee Treatment Plant, as well as building modifications to meet current MW requirements.

The Werribee Treatment Plant (WTP) is a vital component in the treatment of Greater Melbourne’s sewerage, treating over 55% of Melbourne’s waste water.

Scope of Work

Design, supply, install and commission of the following new equipment as per the project’s Functional Requirements:

  • Ten new 22kV pole-mounted load break switches;
  • Four replacement 22kV RMUs (Ring-Main Units);
  • Six new transformer monitoring boxes;
  • Twenty new RMU control panels;
  • Twelve replacement control panel escutcheon plates;
  • Decommission and remove retired 22kV metering equipment, sections of overhead 22kV line and associated power poles;
  • Decommission and remove redundant 22kV RMU;
  • Five replacement 22kV protection relays;
  • Sixty-five replacement and new 22kV live line indicators.

Also included were:

  • Detailed design and as constructed documentation.
  • Temporary works designs and plans as required.
  • Ensure all existing cables being retained are technically suitable for new equipment installation.
  • Provide assistance to MWC SCADA/PLC service provider for programming of PLC and OIU.
  • Supply and install new fibre optic cables associated with the above new and replacement equipment.

Innovation & Complexity

SFP’s key drivers for the project are the following:

  • Ensuring all works are delivered safely;
  • Minimising impact to all stakeholders, including Melbourne Water Operations and the general public;
  • Staging of the works to reduce outages, project cost, duration and risk;
  • Maintaining close communication and coordination with Melbourne Water Operations.
  • Follow the Melbourne Water and Safety Focused Performance Agreed Framework Safety Behaviors.

Project Outcomes

Safety Focus Project - Safety Icon


Regular Pre-Starts and fortnightly Toolbox talks and were held which provided workers opportunities to voice any concerns or issues regarding safety.

COVID-19 safety was managed through development of a COVID Safe Work Plan which included, but was not limited to, reducing work sizes where possible, maintaining a QR sign-in register, PPE adjustments and reinforcing hygiene worksite practices

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SFP focussed on the following quality objectives throughout the project the measures outlined in the Project Management Plan and put into practice within an integrated, collaborative team environment established with the customer to encourage open, honest, and efficient sharing of information, by implementing a collaboration system.

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To ensure that all potential environmental impacts that could be expected to occur throughout the project, fall within acceptable limits, SFP has committed to a positive reporting culture which ensures all environmental observations, hazards and near misses and incidents are documented, and to ensure that everyone is provided with regular and up-to-date information on environmental aspects for the duration of the project.

Key Staff Involved

Isuru Dissanayake
Project Manager

Michael Sevior

Andrew Brett
Project Engineer

David Plunkett

Michael Mola
Project Engineer

Timothy Bland
Graduate Engineer